1
|
Sun Y, Wang Z, Zhou Q, Li X, Zhao D, Ding B, Wang S. Ti 3C 2 mediates the NiFe-LDH layered electrocatalyst to enhance the OER performance for water splitting. Heliyon 2024; 10:e30966. [PMID: 38784544 PMCID: PMC11112313 DOI: 10.1016/j.heliyon.2024.e30966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/30/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
Oxygen evolution reaction (OER) is a very complex process with slow reaction kinetics and high overpotential, which is the main limitation for the commercial application of water splitting. Thus, it is of necessary to design high-performance OER catalysts. NiFe based layered double hydroxides (NiFe-LDHs) have recently gained a lot of attention due to their high reaction activity and simple manufacturing process. In this study, a novel electrocatalyst based on NiFe-LDH was constructed by introducing Ti3C2, which was utilized to modulate the structural and electronic properties of the electrocatalysts. Structural examinations reveal that the Ti3C2 of 2D structure successfully dope the NiFe-LDHs nanosheets, forming NiFe-LDH/Ti3C2 heterojunctions. Firstly, the heterojunction substantially reduces the charge transfer resistance, promoting the electron migration between the LDH nanosheets. Secondly, theoretical calculations demonstrate that the energy barrier between the rate-determining step from *OH to *O is lowered, favoring the formation of the reaction intermediates and thus the occurrence of OER. As a result, the composite electrocatalyst exhibits a low overpotential of 334 mV at a current density of 10 mA/cm2 and a small Tafel slope of 55 mV/dec, which are superior to those of the NiFe-LDH by 11.2 % and 38.5 %, respectively. This study provides inspiration for promoting the performances of NiFe based electrocatalysts by utilizing 2D materials.
Collapse
Affiliation(s)
- Yaxun Sun
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| | - Ze Wang
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| | - Qianyu Zhou
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| | - Xin Li
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| | - Dongye Zhao
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| | - Bo Ding
- College of Information Engineering, Xizang Minzu University, Xianyang 712000, China
| | - Shifeng Wang
- Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa, 850000, China
| |
Collapse
|
2
|
Sun Y, Cai Q, Wang Z, Li Z, Zhou Q, Li X, Zhao D, Lu J, Tian S, Li Y, Wang S. Two-Dimensional SnS Mediates NiFe-LDH-Layered Electrocatalyst toward Boosting OER Activity for Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16. [PMID: 38668627 PMCID: PMC11086328 DOI: 10.1021/acsami.3c18458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/10/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024]
Abstract
NiFe-layered double hydroxides (NiFe-LDHs), as promising electrocatalysts, have received significant research attention for hydrogen and oxygen generation through water splitting. However, the slow oxidation kinetics of NiFe-LDH, due to the limited number of active sites and the low conductivity, hinders the improvement of the water-splitting efficiency. Therefore, to overcome the obstacles, two-dimensional (2D) SnS was first explored to tailor the prepared NiFe-LDH via the hydrothermal method. A NiFe-LDH/SnS heterojunction is built, which is observed from the microstructural investigations. SnS incorporation could greatly improve the conductivity of the NiFe-LDH sheets, which was reflected by the reduced charge transfer resistance. Moreover, SnS layers modulated the electronic environment around the active sites, favoring the adsorption of intermediates during the oxygen evolution reaction (OER) process, which was verified by density functional theory calculations. A synergistic effect induced by the NiFe-LDH/SnS heterostructure promoted the OER activities in electrical, electronic, and energetic aspects. Consequently, the as-prepared NiFe-LDH/SnS electrocatalyst greatly improved the electrocatalytic performance, exhibiting 20% and 27% reductions in the overpotential and Tafel slope compared with those of pristine NiFe-LDH, respectively. The results provide a strategy for regulating NiFe-based electrocatalysts by using emerging 2D materials to enhance water-splitting efficiency.
Collapse
Affiliation(s)
- Yaxun Sun
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Qingguo Cai
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Ze Wang
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Zhichun Li
- Department
of Health Technology and Informatics, The
Hong Kong Polytechnic University, Hong Kong SAR 999077, China
| | - Qianyu Zhou
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Xin Li
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Dongye Zhao
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Jianfeng Lu
- State
Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Shouqin Tian
- State
Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Yong Li
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| | - Shifeng Wang
- Key
Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous
Region, College of Science, Tibet University, Lhasa 850000, China
| |
Collapse
|
3
|
Yu B, Liu JH, Guo S, Huang G, Zhang S, Chen S, Li X, Wang Y, Lv LP. Densely populated tiny RuO 2 crystallites supported by hierarchically porous carbon for full acidic water splitting. MATERIALS HORIZONS 2023; 10:4589-4596. [PMID: 37591818 DOI: 10.1039/d3mh00587a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
The exploitation of highly active bifunctional electrocatalysts for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in acidic media has been a subject receiving immense interest. However, the existing catalysts usually suffer from low catalytic efficiency and poor corrosion resistance under acidic conditions. Herein, we report a facile molten salt method to fabricate ruthenium dioxide nanoparticles supported by hierarchically porous carbon (RuO2/PC) as a bifunctional electrocatalyst for full water splitting under strong acidic conditions. The formation of a densely populated nanocrystalline RuO2/carbon heterostructure helps expose catalytic sites, accelerates the mass transfer rate, and further enhances the acid resistance of RuO2 nanoparticles. The as-synthesized RuO2/PC consequently exhibits superior catalytic performance for the OER with an overpotential of 181 mV upon 10 mA cm-2 compared to that of the commercial RuO2 (343 mV) and a comparable performance to Pt/C for the HER (47.5 mV upon 10 mA cm-2) in 0.5 M H2SO4. The RuO2/PC shows promising stability with little degradation over ∼24 h. Impressively, the water electrolyzer based on RuO2/PC shows an overpotential of 326 mV at 10 mA cm-2, much lower than that of the electrolyzer based on the combination of Pt/C and RuO2 (400 mV), indicating its great potential towards practical application.
Collapse
Affiliation(s)
- Bo Yu
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE) Shanghai University, Shanghai, 200444, China.
| | - Jin-Hang Liu
- School of Chemistry and Chemical Engineering, Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang 332005, China
| | - Shuaibiao Guo
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Guanlin Huang
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Shengjia Zhang
- School of Mechanical Engineering, Energy and Power Engineering program, Shanghai JiaoTong University, Shanghai, 200240, China
| | - Shuangqiang Chen
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Xiaopeng Li
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
| | - Yong Wang
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE) Shanghai University, Shanghai, 200444, China.
| | - Li-Ping Lv
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE) Shanghai University, Shanghai, 200444, China.
| |
Collapse
|
4
|
Song H, Li J, Sheng G, Yin R, Fang Y, Zhong S, Luo J, Wang Z, Mohamad AA, Shao W. Chemical Transformation Induced Core-Shell Ni 2P@Fe 2P Heterostructures toward Efficient Electrocatalytic Oxygen Evolution. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3153. [PMID: 36144941 PMCID: PMC9503841 DOI: 10.3390/nano12183153] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/03/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The oxygen evolution reaction (OER) is a crucial reaction in water splitting, metal-air batteries, and other electrochemical conversion technologies. Rationally designed catalysts with rich active sites and high intrinsic activity have been considered as a hopeful strategy to address the sluggish kinetics for OER. However, constructing such active sites in non-noble catalysts still faces grand challenges. To this end, we fabricate a Ni2P@Fe2P core-shell structure with outperforming performance toward OER via chemical transformation of rationally designed Ni-MOF hybrid nanosheets. Specifically, the Ni-MOF nanosheets and their supported Fe-based nanomaterials were in situ transformed into porous Ni2P@Fe2P core-shell nanosheets composed of Ni2P and Fe2P nanodomains in homogenous dispersion via a phosphorization process. When employed as the OER electrocatalyst, the Ni2P@Fe2P core-shell nanosheets exhibits excellent OER performance, with a low overpotential of 238/247 mV to drive 50/100 mA cm-2, a small Tafel slope of 32.91 mV dec-1, as well as outstanding durability, which could be mainly ascribed to the strong electronic interaction between Ni2P and Fe2P nanodomains stabilizing more Ni and Fe atoms with higher valence. These high-valence metal sites promote the generation of high-active Ni/FeOOH to enhance OER activity.
Collapse
Affiliation(s)
- Huijun Song
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jingjing Li
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Guan Sheng
- School of Materials and Mineral Resources Engineering, University Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Ruilian Yin
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yanghang Fang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shigui Zhong
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Juan Luo
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhi Wang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ahmad Azmin Mohamad
- School of Materials and Mineral Resources Engineering, University Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Wei Shao
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| |
Collapse
|